ICT Lower sixth and Upper Sixth

Prototype is a ____________

• Working model of an existing model

• Mini model of an existing model

• Mini model of the processed model

• None of the above

Answer explanation

A prototype by definition is an initial model or sample of a product used to test and refine ideas before full-scale production or implementation.

What happens in the design phase?

• The code is produced

• Making changes when the software has been created

• Planning the solution, look and feel of the software interface

• Ensuring the requirements are understood

Answer explanation

In the design phase, the focus is on planning the solution and defining the look and feel of the software interface. This step is crucial for creating a user-friendly and effective software product.

"I went to a company as a system analyst, sat down to see how the current system works. I did not talk to anyone." Which research method is described above?

• Interview

• Questionnaire

• Collecting Documents

• Observation

Answer explanation

The scenario describes a system analyst observing the current system without interaction, which aligns with the research method of Observation. This method involves watching processes or behaviors without direct communication.

User Manuals and Technical guides are created in which stage of the System Analysis and Design?

• Design
• Analysis
• Documentation
• Evaluation

This testing allows the system to be tested on a wide range of hardware and operating systems.

• Black Box Testing

• White Box Testing

• Alpha Testing

• Beta Testing

What kind of gate does this Truth Table represent?

• XOR

• OR

• NOT

• AND

Answer explanation

The Truth Table for XOR shows that the output is true only when the inputs differ. This characteristic matches the XOR gate, making it the correct choice. Other gates like AND, OR, and NOT do not exhibit this behavior.

What is the primary purpose of a system prototype?

• To replace the need for testing

• To test the final product

• To document system requirements

• To gather user feedback on design

Answer explanation

The primary purpose of a system prototype is to gather user feedback on design. This feedback helps refine the system before final development, ensuring it meets user needs effectively.

What type of testing is performed to ensure the software meets business needs?

• System Testing

• User Acceptance Testing

• Integration Testing

• Unit Testing

Answer explanation

User Acceptance Testing (UAT) is performed to ensure the software meets business needs by validating it against user requirements. It involves end-users testing the software in real-world scenarios before final approval.

What is a primary key in a relational database?

• A unique identifier for each row in a table

• A key that allows duplicate values

• A key used to reference rows in other tables

• A key that is used to order the rows in a table

Answer explanation

A unique identifier for each row in a table Explanation: A primary key is a column or a set of columns that uniquely identifies each row in a table. It ensures that no two rows have the same primary key value and it cannot contain NULL values.

What is the purpose of a foreign key in a relational database?

• To uniquely identify each row in a table

• To establish a link between the data in two tables

• To prevent duplicate data in a table

• To ensure that data is ordered

Answer explanation

To establish a link between the data in two tables Explanation: A foreign key is a column or a set of columns in one table that references the primary key columns of another table. This creates a relationship between the two tables, enforcing referential integrity.